The compact disc (CD) is a digital optical disc data storage format that was co-developed by Philips and Sony to store and play digital audio recordings. In August 1982, the first compact disc was manufactured. It was then released in October 1982 in Japan and branded as Digital Audio Compact Disc.
The Sega CD, released as the Mega-CD in most regions outside North America and Brazil, is a CD-ROM accessory for the Sega Genesis produced by Sega as part of the fourth generation of video game consoles. It was released on December 12, 1991, in Japan, October 15, 1992, in North America, and April 2, 1993, in Europe. The Sega CD plays CD games and adds hardware functionality such as a faster CPU and graphic enhancements such as sprite scaling and rotation. It can also play audio CDs and CD+G discs.
Thomas Andrew Lehrer is an American musician, singer-songwriter, satirist, and mathematician, who later taught mathematics and musical theater. He recorded pithy and humorous songs that became popular in the 1950s and 1960s. His songs often parodied popular musical forms, though they usually had original melodies. An exception is "The Elements", in which he set the names of the chemical elements to the tune of the "Major-General's Song" from Gilbert and Sullivan's Pirates of Penzance.
An audiophile is a person who is enthusiastic about high-fidelity sound reproduction. An audiophile seeks to reproduce the sound of a piece of recorded music or a live musical performance, typically inside closed headphones, In-ear monitors, open headphones in a quiet listening space, or a room with good acoustics.
S/PDIF is a type of digital audio interface used in consumer audio equipment to output audio over relatively short distances. The signal is transmitted over either a coaxial cable or a fiber optic cable with TOSLINK connectors. S/PDIF interconnects components in home theaters and other digital high-fidelity systems.
Tracheomalacia is a condition or incident where the cartilage that keeps the airway (trachea) open is soft such that the trachea partly collapses especially during increased airflow. This condition is most commonly seen in infants and young children. The usual symptom is stridor when a person breathes out. This is usually known as a collapsed windpipe.
Terence Kemp McKenna was an American ethnobotanist and mystic who advocated the responsible use of naturally occurring psychedelic plants. He spoke and wrote about a variety of subjects, including psychedelic drugs, plant-based entheogens, shamanism, metaphysics, alchemy, language, philosophy, culture, technology, environmentalism, and the theoretical origins of human consciousness. He was called the "Timothy Leary of the '90s", "one of the leading authorities on the ontological foundations of shamanism", and the "intellectual voice of rave culture".
Palliative care is an interdisciplinary medical caregiving approach aimed at optimizing quality of life and mitigating suffering among people with serious, complex, and often terminal illnesses. Within the published literature, many definitions of palliative care exist. The World Health Organization (WHO) describes palliative care as "an approach that improves the quality of life of patients and their families facing the problems associated with life-threatening illness, through the prevention and relief of suffering by means of early identification and impeccable assessment and treatment of pain and other problems, physical, psychosocial, and spiritual." In the past, palliative care was a disease specific approach, but today the WHO takes a broader approach, that the principles of palliative care should be applied as early as possible to any chronic and ultimately fatal illness.
Video game music is the soundtrack that accompanies video games. Early video game music was once limited to sounds of early sound chips, such as programmable sound generators (PSG) or FM synthesis chips. These limitations have led to the style of music known as chiptune, which became the sound of the first video games.
Patent ductus arteriosus (PDA) is a medical condition in which the ductus arteriosus fails to close after birth: this allows a portion of oxygenated blood from the left heart to flow back to the lungs by flowing from the aorta, which has a higher pressure, to the pulmonary artery. Symptoms are uncommon at birth and shortly thereafter, but later in the first year of life there is often the onset of an increased work of breathing and failure to gain weight at a normal rate. With time, an uncorrected PDA usually leads to pulmonary hypertension followed by right-sided heart failure.
The 1992 Republican National Convention was held in the Astrodome in Houston, Texas, from August 17 to August 20, 1992. The convention nominated President George H. W. Bush and Vice President Dan Quayle for reelection. It was Bush's fourth consecutive appearance as a candidate on a major party ticket; only Bush and Franklin D. Roosevelt have been nominated on four consecutive presidential tickets. Richard Nixon and Roosevelt were nominated five times, but not consecutively.
Crimson Thunder is the fourth studio album released by the Swedish metal band HammerFall. It was the first album the band worked on with producer Charlie Bauerfeind.
Respiratory sounds, also known as lung sounds or breath sounds, refer to the specific sounds generated by the movement of air through the respiratory system. These may be easily audible or identified through auscultation of the respiratory system through the lung fields with a stethoscope as well as from the spectral characteristics of lung sounds. These include normal breath sounds and adventitious or "added" sounds such as crackles, wheezes, pleural friction rubs, stertor, and stridor.
Al Gromer Khan is a German sitar player and composer whose music spans the multiple genres of ambient, new age, world and electronica. He is author of 4 novels and author of National-Radio documentaries and features about music for more than 25 years and works as a visual artist. Al Gromer Khan was awarded the Rabindranath Tagore Cultural Prize 2015 for his lifetime achievement as musician/performer on sitar and surbahar of the highest order, composer, writer and visual artist by the Indo-German Society.
Pulmonaryinsufficiency is a condition in which the pulmonary valve is incompetent and allows backflow from the pulmonary artery to the right ventricle of the heart during diastole. While a small amount of backflow may occur ordinarily, it is usually only shown on an echocardiogram and is harmless. More pronounced regurgitation that is noticed through a routine physical examination is a medical sign of disease and warrants further investigation. If it is secondary to pulmonary hypertension it is referred to as a Graham Steell murmur.
Jonah Richard Lehrer is an American author and blogger. Lehrer studied neuroscience at Columbia University and was a Rhodes Scholar. Thereafter, he built a media career that integrated science and humanities content to address broad aspects of human behaviour. Between 2007 and 2012 Lehrer published three non-fiction books that became best-sellers, and also wrote regularly for The New Yorker and Wired.com.
Steven Lehrer is a physician and writer, known for medical research and for his English translation of Else Ury.
Understanding Lung Sounds 3rd edition (2002) by Steven Lehrer is a book and audio CD that guides the student through the skills of lung auscultation. It provides a complete overview of lung examination, anatomy, physiology, and pathology. The audio CD presents and explains normal and abnormal lung sounds.
Master Quality Authenticated (MQA) is a three part process applied to digital audio music recordings consisting of: 1) modifying and controlling the end to end digital filter response; 2) preparing the high-quality audio for transfer to a smartphone or audio device using a lossy audio compression format; and 3) decompressing the recording for playback. The tech was launched in 2014 by Meridian Audio, and is now owned and licensed by MQA Ltd. MQA is a proprietary system and requires licensing fees to use.
Chest pain in children is the pain felt in the chest by infants, children and adolescents. In most cases the pain is not associated with the heart. It is primarily identified by the observance or report of pain by the infant, child or adolescent by reports of distress by parents or caregivers. Chest pain is not uncommon in children. Many children are seen in ambulatory clinics, emergency departments and hospitals and cardiology clinics. Most often there is a benign cause for the pain for most children. Some have conditions that are serious and possibly life-threatening. Chest pain in pediatric patients requires careful physical examination and a detailed history that would indicate the possibility of a serious cause. Studies of pediatric chest pain are sparse. It has been difficult to create evidence-based guidelines for evaluation.
